Kaitlyn Bristowe and Shawn Booth have yet to tie the knot -- but for good reason!

ET caught up with the laid-back couple at Bachelor in Paradise's Jade Roper and Tanner Tolbert's wedding at the St. Regis Monarch Beach resort in California last month, where they revealed why their wedding has been delayed.

"We're so bad at planning, both of us together," Bristowe, 30, said, laughing. "So we're like, 'Yeah, we'll do it in the new year!' We're the kind of people, I think, that if people tell us to do something or if there's pressure, we're like, 'Well, now we're gonna wait! We don't have to do what you say to do, we're going to take our time!'"

Tolbert and Roper opted to air their nuptials on TV, with a The Bachelor at 20: A Celebration of Love special airing on ABC at 8 p.m. ET on Sunday. The special traces 20 seasons of "happiness, heartbreak and hijinks on the road to bliss" and features the largest gathering of alumni in Bachelor history.

As we patiently wait to watch the fan favorites tie the knot, press play on the video below to hear Bachelorette alum Andi Dorfman's do's and don'ts for an A+ Valentine's Day date.